Example implementations of ethsnarks(https://github.com/HarryR/ethsnarks).
$ git clone git@github.com:LayerXcom/ethsnarks-examples.git
$ cd ethsnarks-examples
You can run ethsnarks on Docker:
$ docker pull osuketh/ethsnarks:latest
$ docker run -v `pwd`:/workspace/ethsnarks-examples --rm -it osuketh/ethsnarks /bin/bash
$ cd /workspace/ethsnarks-examples
then, executing by make command.
$ make spec=sha256
gas estimation: 594886
(enter) Call to r1cs_gg_ppzksnark_zok_generator [ ] (1544927799.6273s x0.00 from start)
(enter) Call to r1cs_constraint_system::swap_AB_if_beneficial [ ] (1544927799.6437s x0.00 from start)
(enter) Estimate densities [ ] (1544927799.6439s x0.00 from start)
* Non-zero A-count (estimate): 31153
* Non-zero B-count (estimate): 37665
(leave) Estimate densities [0.0028s x0.78] (1544927799.6467s x0.00 from start)
(enter) Perform the swap [ ] (1544927799.6467s x0.00 from start)
(leave) Perform the swap [0.0013s x0.39] (1544927799.6481s x0.00 from start)
(leave) Call to r1cs_constraint_system::swap_AB_if_beneficial [0.0045s x0.63] (1544927799.6482s x0.00 from start)
(enter) Call to r1cs_to_qap_instance_map_with_evaluation [ ] (1544927799.6494s x0.00 from start)
(enter) Compute evaluations of A, B, C, H at t [ ] (1544927799.6517s x0.00 from start)
(leave) Compute evaluations of A, B, C, H at t [0.2346s x0.98] (1544927799.8863s x0.00 from start)
(leave) Call to r1cs_to_qap_instance_map_with_evaluation [0.2370s x0.98] (1544927799.8865s x0.00 from start)
* QAP number of variables: 51378
* QAP pre degree: 54818
* QAP degree: 65536
* QAP number of input variables: 2
(enter) Compute query densities [ ] (1544927799.8871s x0.00 from start)
(leave) Compute query densities [0.0006s x0.57] (1544927799.8878s x0.00 from start)
(enter) Compute gamma_ABC for R1CS verification key [ ] (1544927799.8878s x0.00 from start)
(leave) Compute gamma_ABC for R1CS verification key [0.0000s x0.79] (1544927799.8879s x0.00 from start)
(enter) Compute L query for R1CS proving key [ ] (1544927799.8886s x0.00 from start)
(leave) Compute L query for R1CS proving key [0.0186s x0.99] (1544927799.9073s x0.00 from start)
(enter) Generating G1 MSM window table [ ] (1544927799.9074s x0.00 from start)
Choosing window size 13 for 120198 elements
* G1 window: 13
(leave) Generating G1 MSM window table [0.2308s x0.99] (1544927800.1382s x0.00 from start)
(enter) Generating G2 MSM window table [ ] (1544927800.1383s x0.00 from start)
Choosing window size 12 for 31153 elements
* G2 window: 12
(leave) Generating G2 MSM window table [0.5784s x1.00] (1544927800.7167s x0.00 from start)
(enter) Generate R1CS proving key [ ] (1544927800.7168s x0.00 from start)
(enter) Generate queries [ ] (1544927800.7211s x0.00 from start)
(enter) Compute the A-query [ ] (1544927800.7211s x0.00 from start)
...... DONE!
(leave) Compute the A-query [1.2366s x0.99] (1544927801.9578s x0.00 from start)
(enter) Compute the B-query [ ] (1544927801.9578s x0.00 from start)
Non-zero coordinate count: 31153/51379 (60.63%)
(leave) Compute the B-query [5.0959s x1.00] (1544927807.0537s x0.00 from start)
(enter) Compute the H-query [ ] (1544927807.0538s x0.00 from start)
....... DONE!
(leave) Compute the H-query [2.0477s x0.99] (1544927809.1015s x0.00 from start)
(enter) Compute the L-query [ ] (1544927809.1015s x0.00 from start)
...... DONE!
(leave) Compute the L-query [1.5936s x0.98] (1544927810.6951s x0.00 from start)
(leave) Generate queries [9.9740s x0.99] (1544927810.6951s x0.00 from start)
(leave) Generate R1CS proving key [9.9784s x0.99] (1544927810.6952s x0.00 from start)
(enter) Generate R1CS verification key [ ] (1544927810.6955s x0.00 from start)
(enter) Encode gamma_ABC for R1CS verification key [ ] (1544927810.7024s x0.00 from start)
. DONE!
(leave) Encode gamma_ABC for R1CS verification key [0.0025s x0.40] (1544927810.7049s x0.00 from start)
(leave) Generate R1CS verification key [0.0095s x0.48] (1544927810.7050s x0.00 from start)
(leave) Call to r1cs_gg_ppzksnark_zok_generator [11.0778s x0.99] (1544927810.7051s x0.00 from start)
* G1 elements in PK: 219670
* Non-zero G1 elements in PK: 199444
* G2 elements in PK: 51380
* Non-zero G2 elements in PK: 31154
* PK size in bits: 68709398
* G1 elements in VK: 3
* G2 elements in VK: 3
* GT elements in VK: 0
* VK size in bits: 2292
(enter) Call to r1cs_gg_ppzksnark_zok_prover [ ] (1544927824.7402s x0.00 from start)
(enter) Compute the polynomial H [ ] (1544927824.7403s x0.00 from start)
(enter) Call to r1cs_to_qap_witness_map [ ] (1544927824.7403s x0.00 from start)
(enter) Compute evaluation of polynomials A, B on set S [ ] (1544927824.7419s x0.00 from start)
(leave) Compute evaluation of polynomials A, B on set S [0.0368s x0.94] (1544927824.7787s x0.00 from start)
(enter) Compute coefficients of polynomial A [ ] (1544927824.7788s x0.00 from start)
(leave) Compute coefficients of polynomial A [0.1122s x0.99] (1544927824.8911s x0.00 from start)
(enter) Compute coefficients of polynomial B [ ] (1544927824.8912s x0.00 from start)
(leave) Compute coefficients of polynomial B [0.0989s x0.99] (1544927824.9901s x0.00 from start)
(enter) Compute ZK-patch [ ] (1544927824.9902s x0.00 from start)
(leave) Compute ZK-patch [0.0120s x0.98] (1544927825.0022s x0.00 from start)
(enter) Compute evaluation of polynomial A on set T [ ] (1544927825.0023s x0.00 from start)
(leave) Compute evaluation of polynomial A on set T [0.1066s x1.00] (1544927825.1089s x0.00 from start)
(enter) Compute evaluation of polynomial B on set T [ ] (1544927825.1090s x0.00 from start)
(leave) Compute evaluation of polynomial B on set T [0.0869s x1.00] (1544927825.1959s x0.00 from start)
(enter) Compute evaluation of polynomial H on set T [ ] (1544927825.1960s x0.00 from start)
(enter) Compute evaluation of polynomial C on set S [ ] (1544927825.2014s x0.00 from start)
(leave) Compute evaluation of polynomial C on set S [0.0135s x0.98] (1544927825.2149s x0.00 from start)
(enter) Compute coefficients of polynomial C [ ] (1544927825.2150s x0.00 from start)
(leave) Compute coefficients of polynomial C [0.0827s x1.00] (1544927825.2977s x0.00 from start)
(enter) Compute evaluation of polynomial C on set T [ ] (1544927825.2978s x0.00 from start)
(leave) Compute evaluation of polynomial C on set T [0.1020s x1.00] (1544927825.3998s x0.00 from start)
(enter) Divide by Z on set T [ ] (1544927825.4031s x0.00 from start)
(leave) Divide by Z on set T [0.0050s x0.90] (1544927825.4081s x0.00 from start)
(leave) Compute evaluation of polynomial H on set T [0.2122s x0.99] (1544927825.4082s x0.00 from start)
(enter) Compute coefficients of polynomial H [ ] (1544927825.4083s x0.00 from start)
(leave) Compute coefficients of polynomial H [0.0917s x0.99] (1544927825.5000s x0.00 from start)
(enter) Compute sum of H and ZK-patch [ ] (1544927825.5004s x0.00 from start)
(leave) Compute sum of H and ZK-patch [0.0011s x0.93] (1544927825.5014s x0.00 from start)
(leave) Call to r1cs_to_qap_witness_map [0.7612s x0.99] (1544927825.5015s x0.00 from start)
(leave) Compute the polynomial H [0.7616s x0.99] (1544927825.5019s x0.00 from start)
(enter) Compute the proof [ ] (1544927825.5021s x0.00 from start)
(enter) Compute evaluation to A-query [ ] (1544927825.5022s x0.00 from start)
(enter) Process scalar vector [ ] (1544927825.5024s x0.00 from start)
* Elements of w skipped: 26723 (52.01%)
* Elements of w processed with special addition: 22970 (44.71%)
* Elements of w remaining: 1686 (3.28%)
(leave) Process scalar vector [0.0199s x1.00] (1544927825.5224s x0.00 from start)
(leave) Compute evaluation to A-query [0.0421s x1.00] (1544927825.5443s x0.00 from start)
(enter) Compute evaluation to B-query [ ] (1544927825.5444s x0.00 from start)
(enter) Process scalar vector [ ] (1544927825.5444s x0.00 from start)
* Elements of w skipped: 16812 (53.97%)
* Elements of w processed with special addition: 14341 (46.03%)
* Elements of w remaining: 0 (0.00%)
(leave) Process scalar vector [0.0913s x1.00] (1544927825.6357s x0.00 from start)
(leave) Compute evaluation to B-query [0.0914s x1.00] (1544927825.6358s x0.00 from start)
(enter) Compute evaluation to H-query [ ] (1544927825.6359s x0.00 from start)
(leave) Compute evaluation to H-query [1.4788s x1.00] (1544927827.1147s x0.00 from start)
(enter) Compute evaluation to L-query [ ] (1544927827.1148s x0.00 from start)
(enter) Process scalar vector [ ] (1544927827.1149s x0.00 from start)
* Elements of w skipped: 26723 (52.01%)
* Elements of w processed with special addition: 22969 (44.71%)
* Elements of w remaining: 1684 (3.28%)
(leave) Process scalar vector [0.0206s x0.99] (1544927827.1355s x0.00 from start)
(leave) Compute evaluation to L-query [0.0320s x0.99] (1544927827.1469s x0.00 from start)
(leave) Compute the proof [1.6489s x1.00] (1544927827.1510s x0.00 from start)
(leave) Call to r1cs_gg_ppzksnark_zok_prover [2.4109s x0.99] (1544927827.1511s x0.00 from start)
* G1 elements in proof: 2
* G2 elements in proof: 1
* Proof size in bits: 1019